Home / 78,346.16-108,193.92-66,948.56

Finding the Fourth Proportional to 78,346.16, 108,193.92 and 66,948.56

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Solution

The fourth proportional to 78,346.16, 108,193.92 and 66,948.56 is: 92,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,346.16 : 108,193.92 = 66,948.56 : x
  2. Step 2: Convert to fraction form
    78,346.16/108,193.92 = 66,948.56/x
  3. Step 3: Cross multiply
    78,346.16x = 108,193.92 × 66,948.56
  4. Step 4: Simplify right side
    78,346.16x = 7,243,427,144.76
  5. Step 5: Solve for x
    x = 7,243,427,144.76/78,346.16
  6. Step 6: Final answer
    x = 92,454.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.